dead,other tamerlan is shot by police. his uncles are calling for him to turn himself in. >> if you are alive, turn yourself in and ask for forgiveness from the victims, from the injured, and forgiveness from these people. >> the net) the two man hours after the fbi -- the net closed around two man hours after the fbi 10:30, the brothers tried to rob a 7-eleven store near the massachusetts institute of technology. then news a police officer was attacked. sean collier, 26 years old, was shot as he sat in his car. he died soon after. the brothers hijacked a car, and the chase that followed ended in watertown, 10 miles from boston. on the usually quiet suburban street, there was a fierce firefight, captured on mobile phones. the police were taking no chances. the innocent owner of the pect tvaycar was for a he died in hospital. >> the closed in around one guy. they got in position. >> what did you see? >> just -- they were screaming at him. they all had their guns out. he was at the point where he was like this. finally, by t